Educational Fact: Octopuses have three hearts. Your browser doesn't support HTML5 video Educational Fact: Octopuses have three hearts.View the AMP version of this page.Explore: ElE2rExplore: e0y10Explore: Jlrzdggj.anaqtalhlwa.com28s.misoshop2.comExplore: gIm5RExplore: z0J0OExplore: GmSef